Serendipity is a female name of American origin, meaning "Fateful Meeting." The term itself refers to an unplanned fortunate discovery, often associated with scientific and technological breakthroughs resulting from accidental findings. Coined by Horace Walpole in 1754, it reflects the concept of "active luck," where chance encounters and human action intersect. The name is derived from the Persian fairy tale, The Three Princes of Serendip, depicting individuals continuously making discoveries by accidents and sagacity. Serendipity has contributed to various inventions, including Post-It Notes, Popsicles, and the microwave oven, as well as significant discoveries in fields such as entomology and online activity. The term is also associated with the design principle for online activity and has inspired related terms such as zemblanity and bahramdipity.